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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2936) Use java.nio.ByteBuffer for buffering in DDMWriter
Date Mon, 16 Jul 2007 11:07:04 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-2936:
--------------------------------------

    Derby Info:   (was: [Patch Available])

Committed revision 556583.

> Use java.nio.ByteBuffer for buffering in DDMWriter
> --------------------------------------------------
>
>                 Key: DERBY-2936
>                 URL: https://issues.apache.org/jira/browse/DERBY-2936
>             Project: Derby
>          Issue Type: Improvement
>          Components: Network Server
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: d2936-1.diff
>
>
> org.apache.derby.impl.drda.DDMWriter uses a byte array as a buffer. Wrapping the array
in a java.nio.ByteBuffer has some advantages, for instance:
>   - utility methods for encoding primitive types into the byte array could be used instead
of manually encoding the values
>   - it allows us to encode strings directly into the buffer (using a CharsetEncoder)
without doing an expensive String.getBytes(String encoding) in an intermediate step
> By using a utility class, the code becomes easier to maintain. Also, ByteBuffer allows
us to access the backing byte array without going through the ByteBuffer interface, so we
still have the possibility to modify the byte array directly in cases where that's more convenient.

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